Exam PCEP-30-02 topic 1 question 78 discussion

The expected output of the given code is 6. Here's a step-by-step explanation of how the code works: An empty dictionary data is created. The key 1 is assigned the value 1, so data becomes {1: 1}. The key '1' (a string) is assigned the value 2, so data becomes {1: 1, '1': 2}. The key 1.0 (a float) is assigned the value 4. In Python, the float 1.0 is considered equal to the integer 1, so this updates the value for the key 1 to 4. Now data becomes {1: 4, '1': 2}. The dictionary data now contains two key-value pairs: {1: 4, '1': 2}. The for loop iterates over the keys of the dictionary: For the first key 1, it adds data[1] (which is 4) to res, so res becomes 4. For the second key '1', it adds data['1'] (which is 2) to res, so res becomes 6. Finally, the print(res) statement outputs 6.